Study on the Layout of Thin-wall Piers of Continuous Rigid Frame Bridge
宋若雨SONG Ruo-yu
(北京建达道桥咨询有限公司,北京100015)
( Beijing Jianda Road and Bridge Consulting Co.,Ltd., Beijing 100015,China )
摘要:我国西南地区地质地形情况十分复杂,多崇山峻岭、深谷沟壑。在此修建高速公路,大跨径、高墩桥梁占比较大,当墩高大于40m后多采用空心薄壁形式。为增强其高墩稳定性,设计中常在一定的位置设置横隔板.横隔板的设置会造成施工周期延长,因此需要合理进行横隔板的布置.针对芷江至铜仁(湘黔界)公路拖冲特大桥连续刚构,进行横隔板优化布置分析,为山区高墩横隔板的布置提供参考经验。
Abstract: 'The geological topography of southwest China is very complex，with many mountains,deep valleys and ravines. ln theconstruction of highway here, the bridge with long span and high pier accounts for a larre propotion, when the pier is taller than 40m, thehollow thin-walled form is mostly adoptedl. In order to enhance the stability of the high pier, the diaphragm is usually set at a certainposition in the design.The installation of diaphragm will prolong the constuction periodl, so it is necessary to properly arrange thediaphragm. In view of the continuous rigid frame of Zhitong high-speed towing bridge, the optimized layout of diaphragm is amalyzred toprovide reference for the layout of high pier diaphragm in mountainous areas.
关键词:连续刚构桥;空心薄壁墩;横隔板;稳定
Key words: rigid frame bridge; thin-walled pier; transverse clapboard; stability
价值工程-文章出处：宋若雨.连续刚构桥空心薄壁墩布置研究[J].价值工程,2023,42(22):72-74.
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